Fetal biparietal diameter as a potential risk factor for prolonged second stage of labor: A retrospective observational cohort study.

ABSTRACT: Prolonged second stage of labor is a common abnormality of labor progression. Very little research exists regarding the relationship between prolonged second stage of labor and antepartum sonographic fetal head biometry parameters, especially fetal biparietal diameter (BPD). Fetal BPD assessment is essential for estimating fetal weight, and these measurements are readily available to Japanese obstetricians. We conducted a retrospective observational cohort study to evaluate the association between BPD fetal Z-score and prolonged second stage of labor in a Japanese cohort. Individual BPD data measured using a GE Voluson 730 expert ultrasound system (GE, Healthcare Japan, Tokyo, Japan) were converted to Z-scores for a particular gestational age. After excluding patients with multiple pregnan

SUBMITTER: Shinohara S 

PROVIDER: S-EPMC7529230 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature